Tabulator for type-writing machines.



T. L. KNAPP. TABULATOR PoR TYPE WRITING MACHINES.

APPLIUATION FILED JULY so, 1909. l v1331381113011 July 26, 1910.

a SHEETS-SHEET 2'.

l T. L. KNMP. TABULATOB FOR TYPE WRITING MACHINES.

APPLICATION FILED JULY 30, 1909. u N

Patented July 26, 1910.

` 3 SHEETS-SHEET 3f para@ 'resaca I.. muy?, or woonsrocx, ILLINOIS', AssIGNoR To THE OLIVER TYPEWRITER COMPANY, or cinciicfo,- ILLINoIs, A coaroaarIoN or (ILLINOIS.

atasco.'

Specification of Letters Patent. Application led July 30, 1909. Serial No.

s Patented July 26, 1910.. 510,390.

of Woodstock, in the county of McHenry -and State of Illinois, have invented certain new and useful Improvements inTabulators for Type-Writing Machines; and I do hereby declare that the following isa full, clear, and exactdescription thereof, reference being had `to the accompanying drawings, and to the numerals of reference marked thereon, which form a part of this specification.

This invention 'relates to'an improved tabulating or column-stop mechanism' for type* writing machines by means of which the carriage is released from the control of the usual letter-spacing mechanism to permit of itsin'ovement under the force of its actuatingsprings to. a predetermined point or points where its movement 1s arrested for the purpose of printing .items or numbers in one or more vertical columns.

The invention relates particularly to the manner in which the stop-bars .are mounted on the frame of the machine, andv to an im proved construction and arrangement by means of which a plurality of sto ,-bars,

` each with its stop-members adjusted or coll umns'of different widthsfare carried by the 3() machine frame in such a way that any one of said stop-bars may be readily brought into active position.

My invention consists of the combination of parts hereinafter more fully described and particularly pointed out in the claims.

In the drawings:-ll`igure' 1 is a top plan view of a typewriting machine showing my improved tabulating. mechanism attached thereto. Fig. 2 is a side elevation of the same. Fig. 3 is a vertical section through 1g. 1 on the line 3-3 thereof. Fig. 4 is a perspective View of one of the stop-members. Fig. 5 -is a horizontal section through the escapement shaft on the line 5 5 of Fig. 3.' Fig. 6 is a rear elevation of the stop p arm and its supporting plate.

In illustrating and describing my invention, I have shown it as applied to a typewriting machine of the kind known as the Oliver, but it will be ap )arent that it may, with equal readiness, e applied to other machines.

. 10 represents the base of the machine; 11

theV fshiftdrame; 12 the paper-carriage; 13 the raak-bar.

"tion, are secured at located on the paper-carriage;

14 the escapement pinion engaging said rack-bar; 15 the escapement-shaft; and 16 the escapementgear. These parts are all of the usual or ordinary construction and form no part of my invention. They are fully illustrated in the drawings and need no further description.-

17 indicates the rear bar of the paper-carriage frame, and 18 an upstanding plate secured thereto. i

19 is a stop-arm which is -in the form of yan angular bar pivotally attached to the.

plate 18, as indicated at 20, and limited in lts downward movement by means of a shoulder 21, formed in the face of the plate 18. A flat spring 22, secured to the top of the plate 18 and engaging the top of the. stop-arm 19, normally holds said bar in its lowermost position while at the same `(time permitting it to be raised from said ps'ition when required, aswill presently appear)y 23 indicates the stop-bars, of which there are shown four in the drawings attached hereto. These stop-bars are in the form of flat bars which, in the preferred constructheir opposite end to spiders 24 keyed to a shaft 25. iSaid shaft is journaled in standards 26 secured in any suitable manner to the base of the machine 10. To these stop-bars are'adjust-ably secured the stop-members or blocks 23b which are adapted to be'brought into position for engagement by the stop-arm 19 1n the operation of tabulating with the machine.

The stop-bars are brought into operative position by means of a tabulating keyindicated by thenumeral 28 (see Fig. 2). SaidA tabulating key4 is-:formed at the end of a lever 29 fulcrumed at 30 on a depending bracket 3]. secured to the base of the ma- The rear end of the said level' 29 is pivotally connected to a link 32, the otherend of which is rock-arm 33 loosely mounted on the shaft 25.

34 indicates a liat spring secured to the 100 upper end of the arm 33 and formed to cn-` gage one end of one of the' bars 23 to maintain the set of b'ars. in iiXed position relativo to said rock arm, which normally holds the set of bars in suchposition. that one bar is 105 just below the path of the stop arm 19. It

tabulating key 28 the rear end of the lever 29 will be raised4 and with it "the forward end of the rock-arm 33, thus rocking the 11o pivotally connected tQra is apparent .that upon the depression of the shaft 25 through a small angle to raise the bar 23 tovactive position with its stop-membersin the path of the stop-arm 19. To release the paper-carriage from the 5 letter-spacing mechanism, upon the opera: tion ofthe tabulating key, is provided the followin construction: The escapementsha 1s journaled near its upper end in a spring retained block 15, the spring normally holding the pinion in engagement with the rack 13.

36 indicates a rock-arm adapted to engage the block 158L and push it out of its normal positionto release the inion from engagement with the rack. Sani rock-arm is mounted lon a rock-shaft 37 and at one end. of this rock-shaft is secured an arm 38 which is pivotally connected toa link 39, the later being connected by a in and .20 slot indicated at 40 to the lever 29 orward of its ulcrum` point. It is apparent that the depression of the tabulating lever will cause the rock-arm 36 to be rocked forward to disengage the pinion 14 from the rack 13. The stop-members are referably secured to the stop-bars in the ollowing manner: The stopffbars 23 are provided on their outer j \edges---with teeth 23 which are bifurcated inthe direction of the length of the bar and 30 the bifurcations slightly spread apart at their ends, as indicated more clearly in Fig. 2. Said teeth are spaced a art a distance equal to double the pitch o the` rack teeth on the rack-bar'13.

23b indicates theI stop-members which are the form oif iat plates (see Fig. 4) and are provided with openings or holes 23, 23, which are of a size to enable the teeth 23a to be forced through them. 4Q The one hole 23i is open-sided, and the other hole ,23c is spaced from the opposite edge of` he stop-block a distance e ual to its width, and the two holes themse ves are separated by the same space.' It is ap- '45 parent that by this arran ement, and

the pitch of the teeth 23 double that of the teeth on the rack-bar of the letter-spacing mechanism, that by reversing the stop-block one of its edges may be made to correspond withthe location of any of the teeth of the rack-bar, that is to say, to register with any letter space of the machine "It is apparent from the above description that the sto -members or blocks may be adjusted to i'erent widths on the several stop-bars to suit the requirements of the work of the oce in which the machine is used, and that when any particularcolumnspacin rovided on one of these bars, is

desire ,t e bar havin that particular spacing of the stop-mem ers may be brought finto plosition below the'stop-arm 19 by rotating t e'shat 25. Much time and annoyance isthussaved. In rotating the shaft 25 in order 'toiringany particular stop-bar into with,

position, the stop-arm'19 may be raised to permit the stop-bars to pass it.

While I have shown herein certain details of mechanical construction and certain arrangements of parts `it is to be understood that l do not limit myself to such, but that they may be modified in various ways with out departing from the spirit of the invention.

I claim as my invention z- 1. In a typewriting machine, in combination with the machine-frame, the paper-carriage, and letter-spacing mechanism, a tab ulating-key, a stop-arm located on the carriage, a plurality of stop-bars, stop-members secured to said stop-bars,` a rotatable carrier Vfor said stop-bars located adjacent the path of said stop-arm, a rock-arm adjustably connected to said carrier, mechanism intermediate said rock-arml and said tabulating-kcy adapted to bring one of said stop-bars into active position, and means actuated by said tabulating-key for releasing the carriage from the letter-spacing mechanism.

2. In a typewriting machine, in combination with the machine-frame, the paper-carriage, and letter-spacing mechanism, a tabulating-key, a stop-arm located on the papercarriage, a plurality of stop-bars, stop-members adjustably secured to said stop-bars, a rotatable carrier for said stop-bars located adjacent the path ofsaid stop-arm, a rock-arm adjustably connected to said carrier and actuated by said tabulating-key, adapted to swing one of said stop-bars into active position, and means actuated by said tabulating-key for releasing the carriage from the letter-spacing mechanism.

3. In a typewriting machine, in combination with the machine-frame, the paper-carriage, and the letter-spacing mechanism, a tabulating key, a stop-arm member, a, rotatable carrier member, one of said members being mounted on the machine frame and the other on the paper-carriage, a plurality of stop-bars secured to said carrier member, stop members secured to said stop-bars, mechanism actuated by said tabulating key adapted to swing the rotatable carrier meniber to bring one of said stop bars into active position, and means actuated by said tabulating key Afor releasing the carriage from the letter-spacing mechanism.

4. In a typewriting machine, in combination with the machine-frame, the papercar riage, and the letter-spacing mechanism, a tabulating-key, a stop-arm member, a rotatable carrier member, one of said members being mounted to move with said paper-carriage, and the other being mounted on the machine-frame,.aplurality of stop-bars secured to said -carrier-member, stop-members secured to said stop-bars, 'mechanism actuated by said 'tabulating key adapted to pro- -dnce relative movement between one of'said stop ibars and said stop-arm to bring the movable one of the two into active position,;

' riage, and letter-spacing mechanism, a tabul arm secured to Said rock-arm latmg key, a stop-arm located on the carriage, a plurality of stop-bars, stopmembers adjust-ably secured in said stop-bars, `a rotatable carrier `for said stop-bars located at the rearof the paper-carriageadjacent to the path of said stop-arm, a. rock-arm loosely mounted on said carrier, a springand having spring engagement with one of said stopbars, mechanism intermediate said tabulating key and said rock-arm adapted to swing the same on its axis, and`means actuated by said tabulating key -forreleasing the carrier from the letter-spacing mechanism. 6.' In a typewriting machine, in combination with the machine frame, the paper-carriage, and letter-spacing mechanism, a tabulating key,

otally .mounted at the rear. carriage, a plurality of stop-bars, stop-niembers adjustably secured to sa' rotatable carrierffor said stop-bars located adjacent to the pathi of said stop-arm vat the same,v ing key for releasing thel carriage from the a spring controlled stop-arm piv" of the paper- 1d. stop-bars, a

rear of thev paper-carriage, a rock-arm pivotally mounted on said carrier, a springarm connected with said rock-arm and having' spring engagement with said carrier, mechanism intermediate said rockarm and said tabulating key` adapted to rockl the and means actuated by said tabulatletter-spacing mechanism. 7. In a tabulating mechanism for typewriters, a stop-bar, bifurcated teeth formed on one edge of said stop-bar, thel bifurcat-ionsof said teeth being separated at their ends a greater distance than at the basej'and a"stopmember comprising a'plate having openings formed therein, one of said openings having four lsides, and the other having. three sides, and the spaces between said openings, and between said four-sided opening and the edges of the plate, and said openings themselves all being of equal width, and the`bifurcated. teeth of said stop-bar being adapted to be sprung within said openings.

In testimony that I claim' the foregoing as my invention I aix my signature in the I presence of two witnesses, this 26th day of July A. D. 1909.

THERON L. KNAPP. Witnesses: Y

BART O. YOUNG, L. T. QUINLAN. 

